Plants in China under climate change

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Chinese Mathematicians

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  Chinese mathematicians in US say they have cracked century-old fluid mechanics puzzle Two young Chinese mathematicians working in the United States, along with an international collaborator, may have solved a century-old problem in fluid mechanics – an  area of study  that is critical to many engineering fields including hydraulic systems, the design of dams and bridges, and aerodynamics. In a paper published on March 3 on arXiv, an open-access platform for preprint papers that are yet to be peer reviewed, the trio said they had resolved “Hilbert’s sixth problem” by proving the mathematics of fluid mechanics. The study was co-authored by Deng Yu, an associate professor of mathematics at the University of Chicago, along with Ma Xiao and Zaher Hani, both from the University of Michigan’s Department of Mathematics. The breakthrough has triggered discussion on social media, especially in China. “They solved the century-long problem and brought Hilbert’s sixth problem in the...
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LandSpace’s Zhuque-3 reusable rocket test a ‘breakthrough’ for China space race

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  Beijing-based company LandSpace set the stage for next year’s maiden flight of its reusable Zhuque-3 rocket with a 10km (6-mile) vertical take-off, vertical landing (VTVL) test in China’s Gobi Desert on Wednesday. The 200-second test flight was also the first time engine reignition – a critical deceleration phase in rocket recovery – was tested in China, in what state broadcaster CCTV called a “ breakthrough” for the country’s commercial space sector. Dai Zheng, commander of the Zhuque-3 project, said the test validated in-flight engine cut-off and restart, as well as other key technologies including joint guidance and control, as well as precise landing. The test marked a “crucial step” towards low-cost, high-frequency space launches, said Dai in the CCTV report. “We have verified these core technologies in advance, laying a solid foundation for the flight and recovery of the rocket. ”An engineer from the Zhuque-3 team, speaking anonymously to the South China Morning Post, sai...
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China’s GPS rival secures

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  China’s GPS rival secures US$1.78 billion as BeiDou system widens reach China’s BeiDou satellite navigation system (BDS) received commitments of 12.7 billion yuan (US$1.78 billion) for new projects during an event in central China’s Hunan province this week, as Beijing rallies international partnerships to  compete with the US-backed Global Positioning System  (GPS). The deals were “conclusively signed” during the Third International Summit on BDS Applications, including 7.83 billion yuan of investment for the Chinese system’s adoption for industrial and consumer use, the state-backed Hunan Daily reported on Friday.  An early warning system under Indonesia’s disaster prevention agency was one signatory, though the value of the contract was not disclosed. Event organisers published 10 major application scenarios for the 30-year-old BeiDou system, including those which could be employed overseas.  Xiang Libin, vice-chairman of the National Development and Refo...
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